136761 has 4 divisors (see below), whose sum is σ = 182352. Its totient is φ = 91172.

The previous prime is 136753. The next prime is 136769. The reversal of 136761 is 167631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (136753) and next prime (136769).

It is a cyclic number.

It is not a de Polignac number, because 136761 - 2³ = 136753 is a prime.

It is a super-2 number, since 2×136761² = 37407142242, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (136769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22791 + ... + 22796.

It is an arithmetic number, because the mean of its divisors is an integer number (45588).

2¹³⁶⁷⁶¹ is an apocalyptic number.

It is an amenable number.

136761 is a deficient number, since it is larger than the sum of its proper divisors (45591).

136761 is an equidigital number, since it uses as much as digits as its factorization.

136761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45590.

The product of its digits is 756, while the sum is 24.

The square root of 136761 is about 369.8121144581. The cubic root of 136761 is about 51.5213723465.

The spelling of 136761 in words is "one hundred thirty-six thousand, seven hundred sixty-one".